In an underground shelter-city encased in ice, Setsuna meets a young girl named Rinne and begins helping her with a mysterious invention. It can apparently help save the world, but its true nature is unclear. Meanwhile, the city itself will very soon perish.
What was that?
ماذا كان ذلك؟
Was ist eben …?
¿Qué fue eso?
¿Qué ha sido eso?
C’était quoi, ça ?
Cos'è stato?
O que foi isso?
Что это было?